Daxor Corporation is a medical instrumentation and biotechnology company. Daxor designed and developed the BVA-100 Blood Volume Analyzer, the first instrument approved by the Food and Drug Administration to provide rapid direct measurement of a patient s true blood volume. The company s IDANT division provides semen-banking services, which include anonymous donor semen and semen storage. It also offers autologous blood storage, andrology services, which include semen analysis and sperm washing, as well as general lab testing. Daxor Corporation maintains its corporate headquarters at the Empire State Building in New York City.